Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 250441
SWOMCD
SPC MCD 250441
MSZ000-ARZ000-LAZ000-250545-

Mesoscale Discussion 0325
NWS Storm Prediction Center Norman OK
1141 PM CDT Fri Mar 24 2017

Areas affected...extreme southeast AR into northeast LA and western
MS

Concerning...Severe potential...Severe Thunderstorm Watch likely

Valid 250441Z - 250545Z

Probability of Watch Issuance...80 percent

SUMMARY...A risk for damaging winds will increase in association
with the approaching squall line.

DISCUSSION...Radar mosaic shows a mature squall line across east TX
north-northeastward into northern LA and another segment of the
larger convective line from southern AR into central AR.  A
mature/longer-lived bowing segment over northern LA will likely move
downstream into northeast LA during the next few hours.  Damaging
winds will the the primary hazard but a low-probability risk for a
brief/weak mesovortex tornado is also possible.  The airmass over
the lower MS Valley will continue to slowly moisten in the low
levels and act to maintain weak buoyancy.  As the leading edge of
the dryslot/DCVA impinge of the discussion area, strong to locally
severe thunderstorms capable primarily of a threat for wind damage
will likely result---leading to the likely need for a severe
thunderstorm watch issuance within the next hour or so.

..Smith/Thompson.. 03/25/2017

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...JAN...LIX...LZK...LCH...SHV...

LAT...LON   32249232 33359177 33659082 33189035 31729090 31319133
            31009156 30909221 32249232



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